Anti-blocking structure of pulse dust collector

Abstract

This utility model discloses an anti-clogging structure for a pulse dust collector. The pulse dust collector has a clean air duct and fan connected to its left side for discharging filtered clean air, and a pulse air manifold installed on its right side for cleaning the dust collection bag. Its bottom features an anti-clogging discharge trough, including a dust collection trough, a dust inlet pipe, and an anti-clogging mechanism. In the anti-clogging mechanism, a straight pipe is connected to the bottom ash discharge port of the dust collection trough, and an inclined ash discharge pipe is fixed to the bottom side wall of the straight pipe with their inner cavities communicating. A lower end cover is fixed to the bottom of the straight pipe, and a servo motor is connected to a drive shaft via a coupling. The bottom section of the outer ring of the drive shaft has spiral blades that forcefully transport clogging dust downwards; the top section of the outer ring is connected to a scraper via a support rod. The scraper is close to the inner wall of the dust collection trough and can scrape off clumps of adhering dust. This utility model's anti-clogging structure effectively solves the problem of ash discharge clogging in pulse dust collectors, ensuring stable equipment operation and improving dust removal efficiency.

Description

Technical Field

[0001] This utility model relates to the field of pulse dust collector technology, specifically to an anti-clogging structure for a pulse dust collector. Background Technology

[0002] Traditional pulse jet dust collectors mainly consist of a housing, dust collection bags, and a pulse jet compressor. Dust-laden gas enters the collector housing and is filtered by the dust collection bags, trapping dust on their surface while clean gas is discharged. As filtration time increases, dust accumulates on the bag surfaces, increasing the collector's resistance and affecting efficiency. At this point, the pulse jet compressor periodically injects high-pressure gas into the dust collection bags, causing the dust to fall off and collect in the dust collection device at the bottom of the collector.

[0003] However, in practice, traditional pulse jet dust collectors have some drawbacks in their dust collection devices. Due to the complex production environment, the dust-laden gas often contains a certain amount of moisture, which condenses inside the dust collection device during operation. Simultaneously, some dust particles are hygroscopic and easily clump together under the influence of moisture. Once clumps form, they adhere to the inner wall of the dust collection device and are difficult to fall off naturally. Furthermore, if the dust has poor flowability, the ash discharge port of the dust collection device is prone to blockage during discharge. Blockage can lead to abnormal internal pressure within the dust collector, affecting the cleaning effect of the pulse jet bag on the dust collection bag, preventing timely dust removal, and further increasing the dust collector's resistance. This not only reduces dust collection efficiency and increases energy consumption but can also, in severe cases, cause the dust collector to malfunction, affecting the continuity and stability of the entire production process. Moreover, cleaning a blocked dust collection device requires shutdown, which not only increases equipment maintenance costs but also leads to production interruptions. Utility Model Content

[0004] The purpose of this invention is to address the shortcomings of existing technologies by providing an anti-clogging structure for a pulse dust collector, thereby solving the problems mentioned in the background art.

[0005] To achieve this objective, the present invention adopts the following technical solution:

[0006] An anti-clogging structure for a pulse dust collector includes a pulse dust collector, a clean air duct connected to the left side of the pulse dust collector, a fan connected to the end of the clean air duct, and an anti-clogging discharge trough provided on the bottom surface of the pulse dust collector.

[0007] The anti-clogging discharge trough includes a dust collection trough, a dust inlet pipe fixedly connected to the left side wall of the dust collection trough, and an anti-clogging mechanism fixedly on the ash discharge port at the bottom of the dust collection trough.

[0008] The anti-clogging mechanism includes a straight pipe, an inclined ash discharge pipe fixed at the bottom side wall of the straight pipe, and a lower end cover fixed to the bottom end face of the straight pipe. A servo motor is fixedly connected to the bottom surface of the lower end cover. The output end of the servo motor is fixedly connected to a drive shaft that passes through the straight pipe and the dust collection tank through a coupling. The bottom section of the outer ring of the drive shaft is fixed with a spiral blade, and the top section of the outer ring of the drive shaft is fixed with 4-6 scraper blades arranged in a ring array.

[0009] As a preferred embodiment of the anti-clogging structure of a pulse dust collector, the top of the inner cavity of the pulse dust collector is provided with multiple dust collection bags, and a pulse air manifold for impacting the dust collection bags is installed on the right side wall of the pulse dust collector.

[0010] As a preferred embodiment of the anti-clogging structure of a pulse dust collector, the dust collection tank is generally shaped like a cylindrical bucket, and the scraper blade is close to the inner wall of the dust collection tank to scrape off the dust that has clumped and adhered to the inner wall of the dust collection tank due to moisture and condensation.

[0011] As a preferred embodiment of the anti-clogging structure for pulse dust collectors, the inner cavities of the straight pipe and the ash discharge inclined pipe are interconnected.

[0012] As a preferred embodiment of the anti-clogging structure of a pulse dust collector, the lower end cover has a through hole for the drive shaft to pass through and connect with the servo motor, and a sealed bearing is installed inside the through hole.

[0013] As a preferred embodiment of the anti-clogging structure of a pulse dust collector, the spiral blades are located in the inner cavity of a straight pipe and are used to force the dust to be transported downwards in the inner cavity of the dust collection tank.

[0014] As a preferred embodiment of the anti-clogging structure of a pulse dust collector, the outer ring of the drive shaft has 4-6 support rods fixed in a ring array around its top section. The ends of the support rods away from the drive shaft are fixedly connected to the inner sidewalls of the scraper blades.

[0015] The beneficial effects of this utility model are:

[0016] In this invention, the scraper blades in the anti-clogging feed trough rotate with the drive shaft, which can scrape off the dust that has clumped and adhered to the inner wall of the dust collection trough due to moisture and condensation, thus preventing dust accumulation from affecting ash discharge. At the same time, the spiral blades rotate under the drive shaft, which can force the dust in the inner cavity of the dust collection trough to move downward, effectively solving the problem of ash discharge blockage and ensuring the normal operation of the dust collector. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments of this utility model will be briefly described below. Obviously, the drawings described below are merely some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without any creative effort.

[0018] Figure 1 This is a schematic diagram of the overall structure of the pulse dust collector described in this utility model.

[0019] Figure 2 This is an exploded structural diagram of the anti-clogging feed trough described in this utility model.

[0020] Figure 3 This is an exploded structural diagram of the anti-blocking mechanism described in this utility model.

[0021] In the picture:

[0022] 1. Pulse dust collector; 2. Anti-clogging feed chute; 21. Dust collection chute; 22. Smoke and dust inlet pipe; 23. Anti-clogging mechanism; 231. Straight pipe; 232. Ash discharge inclined pipe; 233. Lower end cover; 234. Servo motor; 235. Spiral blade; 236. Drive shaft; 237. Scraper; 238. Support rod; 3. Fan; 4. Clean air duct. Detailed Implementation

[0023] The technical solution of this utility model will be further described below with reference to the accompanying drawings and specific embodiments.

[0024] The accompanying drawings are for illustrative purposes only and are schematic diagrams, not actual images. They should not be construed as limiting the scope of this patent. To better illustrate the embodiments of this utility model, some components in the drawings may be omitted, enlarged, or reduced, and do not represent the actual dimensions of the product. It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0025] In the accompanying drawings of this utility model, the same or similar reference numerals correspond to the same or similar components. In the description of this utility model, it should be understood that if terms such as "upper," "lower," "left," "right," "inner," and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, they are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, the terms used to describe positional relationships in the drawings are only for illustrative purposes and should not be construed as limiting this patent. For those skilled in the art, the specific meaning of the above terms can be understood according to the specific circumstances.

[0026] In the description of this utility model, unless otherwise explicitly specified and limited, the term "connection" or similar designation indicating the connection relationship between components should be interpreted broadly. For example, it can refer to a fixed connection, a detachable connection, or an integral part; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium; it can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0027] like Figures 1 to 3 As shown, this utility model provides an anti-clogging structure for a pulse dust collector. The pulse dust collector 1 adopts a conventional bag-type design, with multiple dust collection bags evenly arranged at the top of its inner cavity for efficient capture of airborne dust particles. A pulse air manifold is installed on the right side wall of the pulse dust collector 1. The pulse air manifold is connected to the dust collection bags through a pulse valve, which can periodically inject high-pressure gas into the dust collection bags, causing the dust on the dust collection bags to fall off and maintaining dust removal efficiency. A clean air duct 4 is connected to the left side of the pulse dust collector 1. The end of the clean air duct 4 is connected to a fan 3. When the fan 3 is started, it can draw clean air filtered by the pulse dust collector 1 through the clean air duct 4 and discharge it into the atmosphere.

[0028] Specifically, the bottom surface of the pulse dust collector 1 is also provided with an anti-clogging feeding trough 2, which includes a dust collection trough 21. The dust collection trough 21 is generally shaped like a hopper, and its left side wall is fixedly connected to a dust inlet pipe 22. Dust-laden gas can enter the dust collection trough 21 through the dust inlet pipe 22.

[0029] Preferably, the bottom ash discharge port of the dust collection tank 21 is fixed with an anti-blocking mechanism 23. The straight pipe 231 of the anti-blocking mechanism 23 is tightly connected to the bottom ash discharge port of the dust collection tank 21. The ash discharge inclined pipe 232 is fixed at an inclination to the bottom side wall of the straight pipe 231, and the inner space of the straight pipe 231 and the ash discharge inclined pipe 232 are interconnected. The dust in the inner cavity of the dust collection tank 21 can enter the ash discharge inclined pipe 232 through the straight pipe 231 and then be discharged through the ash discharge inclined pipe 232.

[0030] In this embodiment, a lower end cap 233 is fixed to the bottom end face of the straight pipe 231. A through hole is opened inside the lower end cap 233, and a sealed bearing is installed in the through hole. A servo motor 234 is fixed to the bottom surface of the lower end cap 233. The output end of the servo motor 234 is fixedly connected to the drive shaft 236 that passes through the sealed bearing through a coupling. A spiral blade 235 is fixed to the bottom section of the outer ring of the drive shaft 236, and the spiral blade 235 is located in the inner cavity of the straight pipe 231. When dust clogs the inner cavity of the dust collection tank 21, the servo motor 234 can be started. The servo motor 234 will drive the drive shaft 236 to rotate, and the spiral blade 235 will also rotate, thereby forcibly transporting the dust in the dust collection tank 21 downward.

[0031] The outer ring of the drive shaft 236 has 4-6 support rods 238 fixed in a ring array around its top section. In this embodiment, 4 support rods 238 are preferred. The end of the support rod 238 away from the drive shaft 236 is fixedly connected to the inner side wall of the scraper 237. The scraper 237 is close to the inner side wall of the dust collection tank 21. During the rotation of the drive shaft 236, the scraper 237 can scrape off the dust that has clumped and adhered to the inner wall of the dust collection tank 21 due to moisture and condensation, preventing dust accumulation and blockage.

[0032] Based on the above-described preferred technical solution, the workflow of this technical solution is explained as follows:

[0033] When the pulse dust collector 1 is in operation, dust-laden gas enters the inner cavity of the pulse dust collector 1 from the outside through the dust inlet pipe 22, which is fixedly connected to the left side wall of the dust collection tank 21. Multiple dust collection bags at the top of the inner cavity filter the dust-laden gas, and the dust is intercepted and adheres to the surface of the dust collection bags. The filtered clean air is then drawn out and discharged into the atmosphere through the clean air duct 4 connected on the left side by the suction of the fan 3. As the filtration process continues, the dust on the surface of the dust collection bags gradually increases. At this time, the pulse dust collector 1... The pulse jet on the right side wall injects high-pressure gas into the dust collection bag at regular intervals through the pulse valve, causing the dust on the dust collection bag to fall off and fall into the anti-clogging discharge trough 2 on the bottom surface of the pulse dust collector 1. The dust first enters the dust collection trough 21 in the anti-clogging discharge trough 2 and gradually accumulates in the dust collection trough 21. When the dust accumulates to a certain extent, some dust may clump together and adhere to the inner wall of the dust collection trough 21 due to moisture and condensation. At the same time, the dust may also cause blockage at the bottom of the inner cavity of the dust collection trough 21.

[0034] At this time, the servo motor 234 fixed to the bottom surface of the lower end cap 233 on the bottom end face of the straight pipe 231 is started. The output end of the servo motor 234 drives the transmission shaft 236, which runs through the straight pipe 231 and the dust collection tank 21, to start rotating through the coupling. The four support rods 238 fixed in a ring array on the outer top section of the outer ring of the transmission shaft 236 rotate accordingly, thereby driving the scraper 237 fixed on the support rods 238 away from the end of the transmission shaft 236 to rotate. The rotating scraper 237 can scrape off the clumps of dust adhering to the inner wall of the dust collection tank 21, causing them to detach from the inner wall and fall down. At the same time, the spiral blades 235 fixed on the bottom section of the outer ring of the transmission shaft 236 also rotate with the rotation of the transmission shaft 236. The spiral blades 235 are located in the inner cavity of the straight pipe 231. The rotating spiral blades 235 exert a downward thrust on the dust blocking the bottom of the inner cavity of the dust collection tank 21 and the inner cavity of the straight pipe 231, forcing the blocked dust to be transported downward.

[0035] Under the forced transport action of the spiral blades 235, the clogged dust is gradually discharged from the anti-clogging feed chute 2 through the straight pipe 231. The inclined ash discharge pipe 232 fixed on the bottom side wall of the straight pipe 231 is connected to the inner cavity of the straight pipe 231. The dust will enter from the straight pipe 231 into the ash discharge pipe 232 and be discharged through the ash discharge pipe 232.

[0036] After the dust is discharged, the servo motor 234 stops running, the drive shaft 236, the spiral blades 235 and the scraper 237 stop rotating, and the pulse dust collector 1 continues to perform normal filtration work until the next time the dust needs to be cleaned, and the above work process is repeated.

[0037] It should be stated that the above-described specific embodiments are merely preferred embodiments of this utility model and the technical principles employed. Those skilled in the art should understand that various modifications, equivalent substitutions, and variations can be made to this utility model. However, such variations, as long as they do not depart from the spirit of this utility model, should be within the protection scope of this utility model. Furthermore, some terminology used in this application specification and claims is not limiting, but merely for ease of description.

Claims

1. An anti-clogging structure for a pulse dust collector, characterized in that, It includes a pulse dust collector (1), a clean air duct (4) is connected to the left side of the pulse dust collector (1), a fan (3) is connected to the end of the clean air duct (4), and an anti-clogging feed trough (2) is provided on the bottom surface of the pulse dust collector (1). The anti-blocking discharge trough (2) includes a dust collection trough (21), a dust inlet pipe (22) fixedly connected to the left side wall of the dust collection trough (21), and an anti-blocking mechanism (23) fixedly connected to the bottom ash discharge port of the dust collection trough (21). The anti-blocking mechanism (23) includes a straight pipe (231), an inclined ash discharge pipe (232) fixedly on the bottom side wall of the straight pipe (231), and a lower end cap (233) fixedly on the bottom end face of the straight pipe (231). A servo motor (234) is fixedly connected to the bottom surface of the lower end cap (233). The output end of the servo motor (234) is fixedly connected to a drive shaft (236) that penetrates into the straight pipe (231) and the dust collection tank (21) through a coupling. A spiral blade (235) is fixedly fixed to the bottom section of the outer ring of the drive shaft (236), and 4-6 scraper blades (237) arranged in a ring array are fixedly fixed to the top section of the outer ring of the drive shaft (236).

2. The anti-clogging structure of the pulse dust collector according to claim 1, characterized in that, The pulse dust collector (1) has multiple dust collection bags at the top of its inner cavity, and a pulse air bag for impacting the dust collection bags is installed on the right side wall of the pulse dust collector (1).

3. The anti-clogging structure of the pulse dust collector according to claim 1, characterized in that, The dust collection tank (21) is generally shaped like a bucket, and the scraper (237) is close to the inner wall of the dust collection tank (21) to scrape off the dust that has clumped up and adhered to the inner wall of the dust collection tank (21) due to moisture and condensation.

4. The anti-clogging structure of the pulse dust collector according to claim 1, characterized in that, The inner cavities of the straight pipe (231) and the ash discharge inclined pipe (232) are interconnected.

5. The anti-clogging structure of the pulse dust collector according to claim 1, characterized in that, The lower end cover (233) has a through hole for the transmission shaft (236) to pass through and connect with the servo motor (234), and a sealed bearing is installed inside the through hole.

6. The anti-clogging structure of the pulse dust collector according to claim 1, characterized in that, The spiral blade (235) is located in the inner cavity of the straight pipe (231) and is used to force the dust in the inner cavity of the dust collection tank (21) to be transported downward.

7. The anti-clogging structure of the pulse dust collector according to claim 1, characterized in that, The outer ring of the drive shaft (236) has 4-6 support rods (238) fixed in a ring array around its top section. The end of the support rod (238) away from the drive shaft (236) is fixedly connected to the inner side wall of the scraper (237).

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